Air tightness testing machine for oil spraying ring

Abstract

The utility model discloses an oil drenching ring air tightness testing machine, which comprises a working platform, an annular tool, inner plugs and outer plugs, the working platform is provided with the annular tool, the side wall of the annular tool is provided with a plurality of blocking ports, the inner plugs are arranged right opposite to the inner sides of the blocking ports, the centers of the inner plugs are provided with holes and are provided with positive pressure air passages, and the outer plugs are provided with negative pressure air passages. An outer plug is arranged on the outer side of the blocking opening in a right opposite mode, a hole is formed in the center of the outer plug, a pressure relief air channel is formed in the outer plug, and the outer plug and the inner plug are in coaxial butt joint at intervals through the oil spraying ring so that the positive pressure air channel can be communicated with the pressure relief air channel. Through the above mode, the oil drenching ring airtightness testing machine provided by the utility model realizes airtightness detection of leakage flow of an oil hole through butt joint of the inner plug and the outer plug, and realizes airtightness detection of leakage flow of a sealing ring through cooperation of the sealing cover by using position switching actions of the inner plug and the outer plug. Therefore, the qualification judgment of the air tightness of the oil spraying ring is accurately and quickly realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to airtight testing device field especially relates to a kind of oiling ring airtight testing machine. BACKGROUND

[0002] The side wall of new energy automobile oiling ring is usually designed with multiple oil holes, and the end face and the side wall are designed with sealing rings. The opening quality of oil hole and the sealing cavity between sealing rings must meet the process control requirements with leakage flow as an index. In order to screen out NG products, the existing technology usually adopts artificial batch sampling, and the sampling test is limited to whether there is defect in appearance, and the sealing performance of each hole and sealing ring cannot be accurately measured, which cannot meet the production needs. SUMMARY

[0003] The utility model mainly solves the technical problem to provide a kind of oiling ring airtight testing machine, the airtight detection of oil hole leakage flow is realized by the butt joint of inner plug and outer plug, and the airtight detection of leakage flow of sealing ring is realized under the cooperation of sealing cover by the position switching action of inner plug and outer plug, so as to accurately and quickly realize the qualified determination of oiling ring airtightness.

[0004] To solve the above technical problems, one technical scheme of the utility model is provided: provide a kind of oiling ring airtight testing machine, including operation platform, annular tool, inner plug, outer plug, the annular tool is provided on the operation platform, the side wall of the annular tool is provided with a plurality of archways, the inner plug is provided with inner plug in the inner side of the archway, the inner plug is provided with positive pressure air duct in the center, the outer plug is provided with outer plug in the outer side of the archway, the outer plug is provided with pressure relief air duct in the center, the outer plug and the inner plug are coaxially connected with oiling ring and make positive pressure air duct and pressure relief air duct through, the positive pressure air duct is connected with positive pressure gas source, and the pressure relief air duct is connected with airtightness detector.

[0005] In a preferred embodiment of the utility model, the annular tool is provided with an electric cylinder above, the electric cylinder is hung with a template through pressure sensor, the template is provided with a sealing cover, the sealing cover is composed of an integral end cover and a surrounding edge, the end cover and the surrounding edge are respectively matched with the oiling ring through sealing ring and form a sealing cavity, and the end cover is connected with an output interface; in the positive pressure air duct connection state, the inner plug is guided from the output interface to the airtightness detector through the sealing cavity.

[0006] In a preferred embodiment of the utility model, the archway is provided with an inner support, the inner support is horizontally installed with a linear rail slider vertically opposite to the archway, and the inner plug is installed on the linear rail slider. Each inner plug is connected with an inner side telescopic air cylinder.

[0007] In a preferred embodiment of the utility model, the operation platform is provided with an outer support, an outer side telescopic cylinder vertically opposite to the archway is horizontally installed on the outer support, and the outer plug is installed on the outer side telescopic cylinder.

[0008] In a preferred embodiment of the utility model, the inner plug front end and the outer plug front end are both coated with silica gel encapsulating blocks.

[0009] The utility model discloses a kind of oil ring air-tight test machines, the air-tight detection of oil hole leakage flow is realized by the butt joint of inner plug and outer plug, simultaneously, the air-tight detection of leakage flow of sealing ring is realized under the cooperation of sealing cover using the position switching action of inner plug and outer plug, to accurately and quickly realize the qualified determination of oil ring air-tightness. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiment description will be simply introduced as follows, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor, wherein:

[0011] Figure 1 It is the overall structure diagram of a preferred embodiment of the utility model a kind of oil ring air-tight test machine;

[0012] Figure 2 It is the structure diagram of inner plug and outer plug;

[0013] Figure 3 It is the structure diagram of positive pressure air passage;

[0014] Figure 4 It is the structure diagram of pressure relief air passage;

[0015] Figure 5 It is the schematic diagram of inner plug and outer plug position relationship;

[0016] Figure 6 It is the structure diagram of sealing cavity;

[0017] Figure 7 It is the structure diagram of telescopic cylinder;

[0018] Figure 8 It is the structure diagram of oil ring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below, obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] As Figures 1-8 The utility model discloses an embodiment, including:

[0021] An oil shower ring airtight test machine, including operation platform 1, annular tool 2, inner plug 3, outer plug 4, annular tool 2 is provided on operation platform 1, the lateral wall of annular tool 2 is provided with a plurality of archway 5, the inner side of archway 5 is provided with inner plug 3, the center of inner plug 3 is provided with positive pressure air passage 6 and is structured, the outer side of archway 5 is provided with outer plug 4, the center of outer plug 4 is provided with pressure relief air passage 7 and is structured, outer plug 4 and inner plug 3 interval oil shower ring 100 coaxially butt joint and make positive pressure air passage 6 and pressure relief air passage 7 through, the positive pressure air source of positive pressure air passage 6 is connected, and the airtightness detector of pressure relief air passage 7 is connected.

[0022] Wherein, the electric cylinder 8 is erected on the top of the annular tool 2, the template 10 is hung down through the pressure sensor 9, the sealing cover 11 is arranged on the template 10, the sealing cover 11 is composed of the end cover 11a and the surrounding edge 11b, the end cover 11a and the surrounding edge 11b are respectively matched with the oil shower ring 100 through the sealing ring 101 and form a sealed cavity 12, the end cover 11a is provided with the output interface 11c, in the state of connecting the positive pressure air passage 6, the inner plug 3 is guided to the airtightness detector through the sealed cavity 12 from the output interface 11c.

[0023] Further, the archway 5 is provided with an inner support 51, the inner support 51 is horizontally installed with a linear rail slider 52 vertically opposite to the archway 5, the inner plug 3 is installed on the linear rail slider 52, and each inner plug 3 is connected with an inner telescopic air cylinder 53.

[0024] Further, the operation platform 1 is provided with an outer support 51a, the outer support 51a is horizontally installed with an outer telescopic air cylinder 53a vertically opposite to the archway 5, and the outer plug 4 is installed on the outer telescopic air cylinder 53a.

[0025] Further, the front end of the inner plug 3 and the front end of the outer plug 4 are covered with silica gel encapsulating blocks.

[0026] As Figure 8 The oil shower ring 100 of the measured automobile applied to the airtight test machine of the application is shown.

[0027] The outer wall of the oil shower ring 100 is provided with a ring of clamping grooves, and a sealing ring 101 is embedded in the clamping grooves;

[0028] The outer wall of the oil shower ring 100 is provided with a ring of clamping grooves, and a sealing ring 101 is embedded in the clamping grooves;

[0029] The outer wall of the oil shower ring 100 is provided with a ring of clamping grooves, and a sealing ring 101 is embedded in the clamping grooves;

[0030] The air tightness test of the device is divided into two parts, one is to test the leakage flow from inside to outside of the opening itself, and the other is to test the leakage flow of the sealing ring 101 in the sealed cavity 12 environment.

[0031] In the first test, the inner plug 3 and the outer plug 4 are pressed on the front and rear sides of the test hole, the inner plug 3 is connected to the positive pressure, and the outer plug 4 is connected to the leakage flow, and the data analysis of the leakage flow can identify whether the oil hole 101a is qualified.

[0032] In the second test, the inner plug 3 is pressed on the oil hole to provide positive pressure, and the outer plug 4 is separated. The output interface leads out the positive pressure to the air tightness detector, and the positive pressure source flows to the air tightness detector after being injected into the sealed cavity 12. The air tightness detector can identify whether the sealing ring 101 is qualified by analyzing the data of the leakage flow.

[0033] As described above, the air tightness test machine for the oil shower ring 100 is provided, the air tightness detection of the leakage flow of the oil hole 101a is realized by the butt joint of the inner plug 3 and the outer plug 4, the test condition is changed by the transposition action of the outer plug 4, the air tightness detection of the leakage flow of the sealing ring 101 is realized under the cooperation of the sealing cover 11, and therefore the qualified determination of the air tightness of the oil shower ring 100 is realized accurately and quickly.

[0034] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion using the utility model specification content, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. An oil-spraying ring air tightness testing machine, characterized in that, The device includes a working platform, a ring-shaped fixture, an inner plug, and an outer plug. The working platform is equipped with the ring-shaped fixture, which has several openings on its side wall. An inner plug is positioned directly opposite the inner side of each opening, with a central hole and a positive pressure air passage. An outer plug is positioned directly opposite the outer side of each opening, with a central hole and a pressure relief air passage. The outer plug and the inner plug are coaxially connected with an oil-spraying ring, and the positive pressure air passage and the pressure relief air passage are connected. A positive pressure air source is connected to the positive pressure air passage, and an airtightness tester is connected to the pressure relief air passage.

2. The oil-spraying ring air tightness testing machine according to claim 1, characterized in that, An electric cylinder is mounted directly above the annular fixture. A template is suspended from the electric cylinder via a pressure sensor. A sealing cover is mounted on the template. The sealing cover consists of an integrally formed end cap and a surrounding edge. The end cap and the surrounding edge are respectively press-fitted with the oil spraying ring through a sealing ring to form a sealed cavity. The end cap has an opening and an external output interface. When the positive pressure air passage is connected, the inner plug is led out through the sealed cavity from the output interface to the airtightness tester.

3. The oil-spraying ring air tightness testing machine according to claim 1, characterized in that, The stall is equipped with an inner support, on which a linear guide slider is horizontally mounted and vertically aligned with the stall. The inner plug is mounted on the linear guide slider, and each inner plug is externally connected to an inner telescopic cylinder.

4. The oil-spraying ring air tightness testing machine according to claim 1, characterized in that, The working platform is equipped with an outer support, on which an outer telescopic cylinder is horizontally mounted, vertically facing the gate, and the outer plug is mounted on the outer telescopic cylinder.

5. The oil-spraying ring air tightness testing machine according to claim 1, characterized in that, Both the front end of the inner plug and the front end of the outer plug are covered with silicone rubber blocks.

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